AED stands for what?

• A. Automatic External Defibrillator
• B. Airframe Emergency Device
• C. Allied External Defibrillator
• D. Automated External Defibrillator

Answer: (D)

The main idea here is understanding what the acronym AED represents in emergency medical equipment. AED stands for Automated External Defibrillator. Automated means the device has built-in functions to analyze the heart rhythm and guide the user through steps, sometimes delivering a shock automatically if needed. External indicates the pads are placed on the outside of the body, not inside. Defibrillator is the device that delivers a controlled electric shock to restore a normal heart rhythm.

This term is the standard in medical and safety contexts. The other phrases aren’t used for this device in those settings: something like airframe emergency device is unrelated to medical defibrillation, and Allied External Defibrillator isn’t a recognized term. The point to remember is that automated external defibrillator represents the commonly accepted naming for this life-saving device.